Christian V. Esguerra, ABS-CBN News

SARANGANI - South Korea's envoy on Thursday said he accepted President Rodrigo Duterte's apology but called for a speedy and thorough investigation into the abduction and killing of businessman Jee Ick-joo allegedly by Philippine police.

Ambassador Jae-Shin Kim said many of his compatriots were "upset" and may now be "reluctant" to visit the Philippines following the incident.